Charges for all manner of marijuana crimes plummeted in the months after Colorado voters legalized limited possession of cannabis for people over 21, reports the Denver Post .

That may have been expected — after all, people over 21 can now legally possess up to an ounce of marijuana. But The Post's analysis shows state prosecutors also pursued far fewer cases for marijuana crimes that remain illegal in Colorado.

For instance, charges for possessing more than 12 ounces of marijuana dropped by 73 percent, and cases alleging possession with intent to distribute fewer than 5 pounds of marijuana dipped by 70 percent. Even charges for public consumption of marijuana fell statewide, by 17 percent, although Denver police have increased their number of citations issued for public consumption.

Colorado Attorney General John Suthers said he thinks the drop in cases may be due to police not wanting to parse the complexities of the state's marijuana law.